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Showing content with the highest reputation since 12/23/2019 in all areas

  1. 3 points
    Hi Chris- I think this can be achieved using a combination of the Value Search and Composite Condition tools. In the following screenshot, I have a signal (temperature) and a condition (Start Capsule). Let's say I'd like to create a new condition that starts at the start of each capsule in Start Capsule and ends when the temperature is 90. First, use the Value Search tool to identify when the temperature is 90 F. This results in several small capsules each time the temperature is 90 F. Next, combine these 2 conditions using the join operator in the Composite Condition tool: This results in a new condition (Start to Temp=90) where each capsule starts at the start the Start Capsule capsule and ends at the start of the Temp=90 capsule. Please let me know if you have any additional questions. Thanks, Lindsey
  2. 3 points
    Hi Banderson, you can create a duration signal from each capsule in a condition, using "signal from condition" tool. As you may know these point and click tools create a Seeq formula underneath. So after using point and click signal from condition tool, you can find the syntax of formula in item properties of that calculation. You can copy this syntax and paste it in Formula and use it to further develop your calculations.
  3. 2 points
    In this example we want to plot both temperature signal and a model signal vs relative humidity in one scatter plot using Seeq. Here are the Steps: RAW Data: Temperature (Area A) Temperature (Area B) X axis - Rel humidity (Area A) Step 1. Delay one of the signals to make sure the data points for both signals are not aligned Model (Area B) $TempAreaB.delay(1min) Step2. Combine the model and the temperature into one signal and set the max interpolation to 1 sec so it doesn't draw a line in between samples Model & Temp Combined (Area A) $Temp.combinewith($Model).setmaxinterpolation(1sec) Step3. Create a condition per each sample in the Temperature and Model Signal Temp Condition (Area A) $Temp.setmaxinterpolation(1sec).isvalid() Model Condition (Area B) $Model.setmaxinterpolation(1sec).isvalid() Step 4. Go to Scatter plot and select "Relative Humidity" as the X-Axis and "Model &Temp Combined" as the Y Axis Step 5. In Scatter Plot, select Model condition and Temperature condition for condition based coloring the sample points
  4. 1 point
    Hi Ali, in addition to @Sanman Mehta's answer if you need just the difference between the values: You can use runningDelta() for getting the change of the value from sample to sample or use Signal From Condition and apply "Delta" as summary statistic. That will give you the difference between values at end and start of the capsule. Regards, Thorsten
  5. 1 point
    Hi Ali, check out this link: https://www.seeq.com/resources/seeq-university/297-using-formulas-for-calculating-rate-of-change-on-a-process-variable Regards, Sanman
  6. 1 point
    Hi Chris, you can use Deviation Search for this. I altered @Lindsey.Wilcox example by using another signal that acts as the limit: Using Deviation Search you can find capsules, when the value is above the threshold: In the last step you combine the conditions to get the desired capsules. Make sure you uncheck "Inclusive of B", otherwise the resulting capsules are extended by the duration of B. Hope this helps. Regards, Thorsten
  7. 1 point
    Hi Banderson, as a workaround you may use periods(): periods(8.5h, 1d) creates a shift of 8.5h each day starting at midnight. Following shifts may be created by adjusting the parameters of periods() or moving these shifts (e.g. $shift1.move(8.5h)). Regards, Thorsten
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